package com.spring.boot.standard.admin.service.impl;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.UUID;
import javax.persistence.criteria.CriteriaBuilder;
import javax.persistence.criteria.CriteriaQuery;
import javax.persistence.criteria.Predicate;
import javax.persistence.criteria.Root;

import org.apache.commons.lang3.ObjectUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import org.springframework.data.jpa.domain.Specification;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.EnableTransactionManagement;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.StringUtils;
import com.spring.boot.standard.admin.common.utils.GsonUtil;
import com.spring.boot.standard.admin.dao.RoadmapsRepository;
import com.spring.boot.standard.admin.entity.Roadmaps;
import com.spring.boot.standard.admin.service.RoadmapsService;

/**
 * @author qinhao
 * @since Tue Oct 12 16:21:55 CST 2021
 */
@Service
@EnableTransactionManagement
public class RoadmapsServiceImpl implements RoadmapsService {
	
    @Autowired
    private RoadmapsRepository roadmapsRepository;

    @SuppressWarnings("serial")
	@Override
	public Page<Roadmaps> findAll(Pageable pageable,Object[] args) {
		Page<Roadmaps> result = roadmapsRepository.findAll(new Specification<Roadmaps>() {
	        @Override
	        public Predicate toPredicate(Root<Roadmaps> root, CriteriaQuery<?> query, CriteriaBuilder cb) {
				List<Predicate> list = new ArrayList<Predicate>(); //多条件搜索的写法
				if (!StringUtils.isEmpty(args[0]) && !StringUtils.isEmpty(args[1])) {
					// 多条件搜索的写法
					list.add(cb.and(cb.like(root.get(args[0].toString()).as(String.class),"%" + args[1] + "%")));
					list.add(cb.equal(root.get("projectname").as(String.class), (String) args[2]));
					Predicate[] p = new Predicate[list.size()];
					return cb.and(list.toArray(p));
				}else{
					return cb.equal(root.get("projectname").as(String.class), (String) args[2]);
				}
	        }
	    }, pageable);
	    return result;
	}

	@Override
	public Roadmaps findById(String roadmapsid) {
		return roadmapsRepository.findById(roadmapsid).get();
	}

	@Override
	public void deleteById(String roadmapsid) {
		roadmapsRepository.deleteById(roadmapsid);;
	}

	@Override
	public Roadmaps save(Roadmaps roadmaps) {
		return roadmapsRepository.save(roadmaps);
	}

	@Override
	@Transactional(rollbackFor = Exception.class)
	public int saveFromList(List<Map<String,String>> list) throws Exception {
		int i=0;
		List<Roadmaps> roadmapslist = new ArrayList<Roadmaps>();
		for(Map<String,String> map:list){
			Roadmaps roadmaps = GsonUtil.getGson().fromJson(GsonUtil.getGson().toJson(map),Roadmaps.class);
			roadmapslist.add(roadmaps);
		}
		for(Roadmaps roadmaps:roadmapslist){
			roadmapsRepository.save(roadmaps);
			i++;
		}
		return i;
	}

    
}
